/*
 * Copyright 2022 Palantir Technologies, Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { expect } from "chai";

import { TruncatedFormat, TruncatedPopoverMode } from "../../src/cell/formats/truncatedFormat";
import * as Classes from "../../src/common/classes";
import { ReactHarness } from "../harness";
import { createStringOfLength } from "../mocks/table";

describe("<TruncatedFormat>", () => {
    const harness = new ReactHarness();

    afterEach(() => {
        harness.unmount();
    });

    after(() => {
        harness.destroy();
    });

    it("can automatically truncate and show popover when truncated", () => {
        const str = createStringOfLength(TruncatedFormat.defaultProps.truncateLength! + 1);

        const comp = harness.mount(
            <div className={Classes.TABLE_NO_WRAP_TEXT}>
                <TruncatedFormat>{str}</TruncatedFormat>
            </div>,
        );
        const textElement = comp.element!.querySelector(`.${Classes.TABLE_TRUNCATED_VALUE}`)!;
        expect(textElement.scrollWidth).to.be.greaterThan(textElement.clientWidth);
        expect(comp.find(`.${Classes.TABLE_TRUNCATED_POPOVER_TARGET}`).element).to.exist;
    });

    // This test was super flaky. It started failing without clear cause when the Table Frozen
    // Columns/Rows changes merged, even though nothing about the TruncatedFormat component
    // changed. Adding the position: relative rule fixes it, but more investigation is needed.
    it("can automatically truncate and show popover when truncated and word wrapped", () => {
        const str = `
            We are going to die, and that makes us the lucky ones. Most
            people are never going to die because they are never going to
            be born. The potential people who could have been here in my
            place but who will in fact never see the light of day
            outnumber the sand grains of Arabia. Certainly those unborn
            ghosts include greater poets than Keats, scientists greater
            than Newton. We know this because the set of possible people
            allowed by our DNA so massively outnumbers the set of actual
            people. In the teeth of these stupefying odds it is you and I,
            in our ordinariness, that are here. We privileged few, who won
            the lottery of birth against all odds, how dare we whine at
            our inevitable return to that prior state from which the vast
            majority have never stirred?
        `;

        // fix the container's width and height to ensure this test passes
        // regardless of the page's dimensions.
        const style: React.CSSProperties = {
            height: "300px",
            position: "relative",
            width: "300px",
        };

        const comp = harness.mount(
            <div className={Classes.TABLE_TRUNCATED_TEXT} style={style}>
                <TruncatedFormat detectTruncation={true}>{str}</TruncatedFormat>
            </div>,
        );
        const textElement = comp.element!.querySelector(`.${Classes.TABLE_TRUNCATED_VALUE}`)!;
        expect(textElement.scrollHeight).to.be.greaterThan(textElement.clientHeight);
        expect(comp.find(`.${Classes.TABLE_TRUNCATED_POPOVER_TARGET}`).element).to.exist;
    });

    it("can automatically truncate and show popover when truncated and word wrapped in approx mode", () => {
        const str = `
            We are going to die, and that makes us the lucky ones. Most
            people are never going to die because they are never going to
            be born. The potential people who could have been here in my
            place but who will in fact never see the light of day
            outnumber the sand grains of Arabia. Certainly those unborn
            ghosts include greater poets than Keats, scientists greater
            than Newton. We know this because the set of possible people
            allowed by our DNA so massively outnumbers the set of actual
            people. In the teeth of these stupefying odds it is you and I,
            in our ordinariness, that are here. We privileged few, who won
            the lottery of birth against all odds, how dare we whine at
            our inevitable return to that prior state from which the vast
            majority have never stirred?
        `;

        // fix the container's width and height to ensure this test passes
        // regardless of the page's dimensions.
        const style: React.CSSProperties = {
            height: "300px",
            position: "relative",
            width: "300px",
        };

        const comp = harness.mount(
            <div className={Classes.TABLE_TRUNCATED_TEXT} style={style}>
                <TruncatedFormat
                    detectTruncation={true}
                    showPopover={TruncatedPopoverMode.WHEN_TRUNCATED_APPROX}
                    parentCellHeight={300}
                    parentCellWidth={300}
                >
                    {str}
                </TruncatedFormat>
            </div>,
        );
        const textElement = comp.element!.querySelector(`.${Classes.TABLE_TRUNCATED_VALUE}`)!;
        expect(textElement.scrollHeight).to.be.greaterThan(textElement.clientHeight);
        expect(comp.find(`.${Classes.TABLE_TRUNCATED_POPOVER_TARGET}`).element).to.exist;
    });

    it("can manually truncate and show popover when truncated", () => {
        const str = createStringOfLength(TruncatedFormat.defaultProps.truncateLength! + 1);
        const comp = harness.mount(<TruncatedFormat detectTruncation={false}>{str}</TruncatedFormat>);
        expect(comp.find(`.${Classes.TABLE_TRUNCATED_VALUE}`).text()).to.have.length(
            TruncatedFormat.defaultProps.truncateLength! + 3,
        );
        expect(comp.find(`.${Classes.TABLE_TRUNCATED_POPOVER_TARGET}`).element).to.exist;
    });

    it("can always show popover", () => {
        const comp = harness.mount(<TruncatedFormat showPopover={TruncatedPopoverMode.ALWAYS} />);
        expect(comp.find(`.${Classes.TABLE_TRUNCATED_POPOVER_TARGET}`).element).to.exist;
    });

    it("does not show popover if text is not truncated by default", () => {
        const str = `Richard Dawkins`;
        const comp = harness.mount(<TruncatedFormat>{str}</TruncatedFormat>);
        expect(comp.find(`.${Classes.TABLE_TRUNCATED_POPOVER_TARGET}`).element).to.not.exist;
    });

    it("doesn't truncate if truncation length is 0", () => {
        const str = `
            To be, or not to be--that is the question:
            Whether 'tis nobler in the mind to suffer
            The slings and arrows of outrageous fortune
            Or to take arms against a sea of troubles
            And by opposing end them. To die, to sleep--
            No more--and by a sleep to say we end
            The heartache, and the thousand natural shocks
            That flesh is heir to. 'Tis a consummation
            Devoutly to be wished. To die, to sleep--
            To sleep--perchance to dream: ay, there's the rub,
            For in that sleep of death what dreams may come
            When we have shuffled off this mortal coil,
            Must give us pause. There's the respect
            That makes calamity of so long life.
            For who would bear the whips and scorns of time,
            Th' oppressor's wrong, the proud man's contumely
            The pangs of despised love, the law's delay,
            The insolence of office, and the spurns
            That patient merit of th' unworthy takes,
            When he himself might his quietus make
            With a bare bodkin? Who would fardels bear,
            To grunt and sweat under a weary life,
            But that the dread of something after death,
            The undiscovered country, from whose bourn
            No traveller returns, puzzles the will,
            And makes us rather bear those ills we have
            Than fly to others that we know not of?
            Thus conscience does make cowards of us all,
            And thus the native hue of resolution
            Is sicklied o'er with the pale cast of thought,
            And enterprise of great pitch and moment
            With this regard their currents turn awry
            And lose the name of action. -- Soft you now,
            The fair Ophelia! -- Nymph, in thy orisons
            Be all my sins remembered.
        `;
        const comp = harness.mount(
            <div className={Classes.TABLE_NO_WRAP_TEXT}>
                <TruncatedFormat detectTruncation={true} truncateLength={0}>
                    {str}
                </TruncatedFormat>
            </div>,
        );
        expect(comp.find(`.${Classes.TABLE_TRUNCATED_VALUE}`).text()).to.have.lengthOf(str.length);
    });
});
